Question

What are the sources of pathogen in water in detail explanation ?

Answer 1

Sources of Pathogens and Contaminants. All waters (i.e. surface water, groundwater/aquifers) can become contaminated from many types of human activities as well as from natural sources. Agricultural, commercial, industrial, and residential development can all contribute togroundwater contamination (WALLIN 1997).
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Answer 2

Main sources of pathogens in water -

Industrial waste-

➡️This includes wastes discharged from factories, refineries into the water bodies.✔️

➡️These wastes contains harmful chemicals such as alkalis, acids etc.✔️

➡️ And toxic metals like mercury, arsenic etc. Which kills the aquatic life.

Sewage-

➡️This contains waste water from our household and other domestic waste dumped into water bodies.✔️

Agricultural run off-

➡️This is the waste water released from agricultural field which contains pesticides and fertilizers that affects the aquatic life.✔️

Oil spills-

➡️Oils released from oil drums which are accidentally discharged from ships into the water bodies.✔️